3 years ago

When measuring speed of sound in air, speed of light = 4f(length of column of air + 0.3 * diameter of tube).

Physics

1 answer:

In-s [12.5K]3 years ago

5 0

Answer:

the length of the column in air

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A 70.0 kg ice hockey goalie, originally at rest, has a 0.110 kg hockey puck slapped at him at a velocity of 31.5 m/s. Suppose th

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Answer

given,

mass of the goalie(m₁) = 70 kg

mass of the puck (m₂)= 0.11 kg

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$v_1=\dfrac{m_2-m_1}{m_1+m_2}v_1+\dfrac{2m_2}{m_1+m_2}v_2$

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$v_{gf} = \dfrac{2\times 0.11\times 31.5}{0.11+70}-\dfrac{(0.11-70)\times 0}{m_1+m_2}$

$v_{gf} = \dfrac{2\times 0.11\times 31.5}{0.11+70}$

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Lifting a piano into a truck is an example of doing negative work. A. True B. False

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